Print Failure at a Specific Height

[Brian Gibson]

I've been having issues with some prints that some students have made using TinkerCAD. The printer will print the first few inches and then embed itself in the print. The software says the print completed when in actuality it stopped mid print and lodged itself in the print. This never happened until I updated to the newest firmware. Not sure it anyone is is having the same issue or has any idea why this might be happening.

Thank you.

[AlanF]

I've seen this once or twice when printing raised text - at the dot on top of a letter 'i' for example. I guess the printer is (almost) stationary for long enough for the last bit of extruded plastic to solidify & stick to the extruder. This hasn't been firmware-issue related for me.

[Andrew Taylor]

Brian,

I have experienced this as well. Same issue where I recognized this after I updated to 14.0. Not sure what causes it or how to stop it.

[TheRik]

Yes, I just 'upgraded' to 0.14.0 and I have this exact same issue.  Other problems include: print shifting, melt volcanoes, pimples, and wavy sidewalls.  Downgraded to 0.11.0 and this put things back to normal, normal being very nice prints using slic3r.

[Henrik Sozzi]

I'm also experiencing big blobs (I think it's the same issue you define as "melt volcanoes") with the latest firmware. I'm running an experimental 0.14.2 that was supposed to address those blobs but it doesn't in all cases.

From my experience I can tell you that I'm seeing the blobs just with Slic3r generated gcode. By using Cura it doesn't.

Observing the printer while it prints I can observe that with slic3r gcode the bed is pausing for a second every now and then and sometimes the blobs comes out.

The problem is that I prefer Slic3r than Cura... xy size compensation is priceless, for example...

Here a picture of what I call "big blobs" (i had to abort due to hopping while the head was passing over that blob):

So by reverting to 0.11 do you say that slic3r gcode is printing better? Are you sure?